Graphics card is using Intel driver and is reported by Intel driver as Intel Arrandale. Second monitor is Dell U2410 (successfully detected by xorg and noted in /var/log/Xorg.0.log). Machine is a Fujitsu T580 laptop. When second monitor is attached, laptop screen goes blank and Dell monitor flickers with various patterns (or sometimes stays blank). Problem is 100% repeatable. There is no crash, and I can ctrl-alt-F1 to make text mode successfully appear on the laptop screen. Disconnecting external monitor, ctrl-alt-F1 and then ctrl-alt-F7 (or F8, depending) successfully restores X on my laptop screen every time.
Problem does NOT occur if I boot with the kernel from package linux-image-2.6.35-22-generic.
Problem DOES occur if I boot with the kernel from package linux-image-2.6.38-5-generic.
Problem DOES occur if I boot with the "mainline" kernel from linux-image-2.6.38-999-generic_2.6.38-999.201102260905_amd64.deb (found at http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/linux-image-2.6.38-999-generic_2.6.38-999.201102260905_amd64.deb ).
Problem occurs whether or not I am running a window manager.
Problem occurs with both the xorg package versions from maverick and from natty.
Thanks for your help.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-5-generic 2.6.38-5.32
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: bshanks 1067 F.... pulseaudio
/dev/snd/controlC1: bshanks 1067 F.... pulseaudio
/dev/snd/controlC0: bshanks 1067 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf4700000 irq 44'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:10ec0269,10cf0000,00100004 HDA:80862804,80860101,00100000'
Controls : 19
Simple ctrls : 10
Card1.Amixer.info:
Card hw:1 'Device'/'C-Media Electronics Inc. USB Multimedia Audio Device at usb-0000:00:1a.0-1.1.1.'
Mixer name : 'USB Mixer'
Components : 'USB0d8c:0105'
Controls : 13
Simple ctrls : 6
Card2.Amixer.info:
Card hw:2 'default'/'AKM AK5370 at usb-0000:00:1a.0-1.1.3.6, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0556:0001'
Controls : 3
Simple ctrls : 2
Date: Sun Feb 27 20:05:03 2011
HibernationDevice: RESUME=UUID=1d9bd6be-28ee-4102-ae4a-f8d52e0ae421
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: FUJITSU T580
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, user)
LANG=C
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic root=UUID=db746971-cee9-4a74-90db-0c9cb14920ea ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-5-generic N/A
linux-backports-modules-2.6.38-5-generic N/A
linux-firmware 1.47
SourcePackage: linux
dmi.bios.date: 12/24/2010
dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
dmi.bios.version: Version 1.04
dmi.board.name: FJNB21E
dmi.board.vendor: FUJITSU
dmi.chassis.type: 10
dmi.chassis.vendor: AI40110911BA1023
dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.04:bd12/24/2010:svnFUJITSU:pnT580:pvr:rvnFUJITSU:rnFJNB21E:rvr:cvnAI40110911BA1023:ct10:cvr:
dmi.product.name: T580
dmi.sys.vendor: FUJITSU
sorry, the first two attachments named "grep kernel /var/log/syslog" are from my entire syslog, over many boots, and with a bunch of usb devices attacked, including an unused displaylink device. attachment #5 is only the current boot, with many of the usb devices (including the displaylink) not attached (problem still occurs)